Hose coupling



July 13, 1937.

P. E. BOHN HOSE COUPLING ,Fil ed May 20, 1936 2 Sheet-Sheet 1 ATTORNEYS July 13, 1937; PIE. BOHN 2,087,180-

HOSE COUPLING Filed May 20, 1956 2 Sheets-Sheet 2 J 5 1 JaaLEL-Bokn,

ATTOR N EYS Patented July 13, 1937 UNITED STATES PATENT OFFICE HOSE COUPLING Paul E. Bohn, Stockton, Calif., assignor. of forty "per cent to Vernon G. Smith, Stockton, Calif.

"Application May 20, 1936, Serial No. 80,869

Y 1 Claim.

This invention relates to couplers for joining hose or pipes and has for the primary object the provision of a device of this character which when brought into coupling relation will be selflocking and will provide a non-leak connection V between the hose or pipes to which it is adapted.

With these and other objects in View, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter morev fully described and claimed. I

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which Figure 1; is a side elevation, partlyin section, illustrating a coupler constructed in accordance with my invention.

7 section of the male member of the coupler.

Figure 2 is a Sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a transverse sectional view taken on the line 3-3 of Figure 2.

Figure 4 is a transverse sectional view taken on the line 4-4 of Figure 2.

Figure 5 is a transverse sectional view showing Referring in detail to the drawings, the numeral l indicates in entirety a coupler which may be employed for connecting hose 2 or if desired,

the coupler may be constructed fo: joining pipes without departing from the present invention. The coupler consists of male and female members 3 and 4. Said members 3 and 4 are shaped, as shown at 5, to have the hose 2 adapted thereto and held thereon by clamps 6.

The female member 4 has formed in its coupling end a tapered seat I and also angularly re lated faces 8 toform-a gasket seat engaged by a gasket 9. The gasket includes angularly related portions conforming to the faces 8. The female member 4 -in its coupling end is provided withnotches l0. Formed on the female member are coupling lugs l l each having an undercut face I2 and each lug tapers from one end towards its opposite end, as clearly shown in Figure 1. The lugs H are relatively spaced to permit lugs l3 of the male member 3 to pass therebetween when the male and female members are brought into 5 coupling relation.

The male member 3 consists of a substantially tubular-shaped element M to which one of the hose is connected and has its opposite end tapered, as shown at Hi, to abut the tapered face 'i of the female member. Said last-named endof the tubular member M has angularly related faces l6 to abut the gasket. Lugs H are formed onthe tubular element M to be received by the notches l0 when the male and female members are brought into coupled position to prevent relative rotation of said members. The female member alsoconsists. of a sectional body l8 including.

sections l9 and 20. The section I9 is secured to the tubular element [4 by set bolts 2|. tions l9 and are cut away to form a spring I chamber 22 in which is located a spring 23 of the clock type, one end of which is secured to the section 23 by a rivet or like fastener 24, while the opposite end is bent in hook formation and re- 25 ceived in a notch 25 formed in the section I9. The locking lugs I3 of the male member are formed on the section 20 of the body l8 and said locking lugs have undercut faces matching the faces l2 of the locking lugs H of the female member. Each lug l3 tapers from one end to its opposite end similar to the taper of the lugs l I.

In operation, to bring about coupling together of the hose or pipes adapted to this coupler, the

section 20 of the body 18 is rotated in onedirection to tension the spring. The male and. fe-

' male members are then brought into coupling relation, the lugs l3 moving through the spaces between the lugs, I In The section 20 of the body I 8 is then released, the spring 23 acting to ro- 40 tate the section 20 bringing the lugs 13 in overlapping relation with the lugs ll. As the lugs l3 move into overlapping relation with the lugs ll, wedging actionis established'between said lugs drawing the male and female members in tight engagement, the spring acting in a direction to continuously increase the wedging action Thus it will be seen between the lugs I3 and II. that this coupler is self-locking when the male and female elements have been brought into coupling relation and further, it-will be seen that the spring normally acts to increase the wedg ing action between the lugs I3 and H. Thus it will be seen that this coupler is self-locking when The sec- 20 I the male and female elements have been brought into coupling relation and further,- it will be seen that the spring normally acts to increase the wedging action between the lugs l3 and II, consequently urging the male and female members towards each other, thereby establishing a leak proof connection between the male and female members.

Having described the invention, I claim:

A coupler comprising male and 'female members, locking lugs formed on the female member and each tapering from one end to the opposite end thereof, said male member including a tubular element and a body mounted thereon and composed of rotatable and fixed sections, set bolts securing the fixed sections to the tubular element, said sections being cut away to form a spring chamber, a clock type spring located in the chamber and having its ends secured to the rotatable and fixed sections of the body, and

tapering locking lugs formed on the rotatable section to pass between the locln'ng lugs of the female member when said female and male members are broughtinto coupling relation with the spring tensioned so that said spring will act 

